bissell



4 L L E s. S I B M nr.

PANNING MILL.

Patented Feb. 21,1882.

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I'. M. BISSELL.. FANNING MILL.

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F. M. BISSELL. FANNING MILL.

No. 258,988. Patnted Peb. 21.1882.

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I'. M. BISSELL I Y y FANNING MILL. y

N. 253.968. v htemdPebJzl.1,882. v

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N. PETERS` Piwla-Lxlhugrupher. wnshingmm D. cv

UNITED STTSE PATENT OFFICE.

FRANCIS MflSsELL, OF COLDAIER, MICHIGAN, ASSIGNOR OF ONE-HALF TO JOHN STEARNS AND ANDREW J. MGGOWAN, OF SAME PLACE.

FANNiNe-M LL.

SPECIFICATION; formingpart of Letters Patent No. 253,968, dated February 21, y1882.

' Application ined Jiuyao, icei. (No mortem To alt'whom fit may-concern: y r Y Be it known that I, FRANcIs M. BrssELm a citizen ot the United States of America, residing at Goldwater, in the county of Branch and State of Michigan,- have invented certain new and useful Improvements in ,Fanning- Mills; and I do herebyde'clare thefollowing to be'a full, clear, and exact description of the invention, such as will enable others skilled in ro the art to which it appertains to make and use the same, reference being had tothe accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification. i n i5 The present invention 'relates to that class Tof fanning-mills for cleaning and separating grain in which an upper laterally-shaking sh`oe 'is employed forremovingoats, chess, and other impurities from the grain, a lower 2o longitudinally-shaking shoe being employed I for separatin g the grain according to' size and quality.

The object of the invention is to furnish a fanning-mill of the class above mentioned in 2 5 which the mechanism for actuating the cleaning and separating shoes is greatly simplified, soas to cause these parts to run more easily than heretofore, provision being also made for retaining the riddles of' the upper shoe withoutv the aid of the customary grooves in the `sides of said shoe.

My improvements consist in the construction and combination of parts, which will hereinafter be more fully described, and then set forth in the claim.

In the drawings, Figure lis a side elevation of a fanning-mill constructed according to my invention. Fig. 2 is a vertical longitudinal section of the same. Fig. 3 is a bottom view of 4o the lower separating-shoe 5 and Fig.y 4 is a front elevation of the machine, showing the transverse rock-shaft carrying spur-segments for imparting a reciprocating movement to ille lower shoe.

The casing or frame of the machine (designatedby the letter A)`is of any approved con- 4 ing-surface is decreased when the through thcslotted side walls of the mill-cas# ing. The sho D is composed of two side boards and a front connecting-bar, having the tstationarysection ot' a chess or feed board, yl1l,`arranged in rear of said bar. An extension or movable section, F, ofthe board E is itted in suitable grooves or ways in the side boards 6o ot' the shoe, and Vis capable of being pushed under said board E, increasing the area of the screening-surface of the riddle or screen fitted in the shoe D. The board F, when drawn out from` under the board E, constitutes an extension of the latter, and the area of the screenparts are in the position mentioned.

I The shoe may contain an ordinary wire riddie of any desired size, according to the kind 7o of work to be performed, or else I may employ a combination zinc or metallic screen, G, consisting of three metal plates having circular openings, and itted in front and side bars comprising a l\olding-.frame.

The wire riddle and the combination metal screen just mentioned are used interchangeably, and are retained between the side boards ofthe shoethrough the medium of transverse tie4 and clamping rods or bolts H, having one 8oI or more screw-threaded ends, and nuts h, tted on the latter. It will be obvious that by loosenin g said nuts the riddle or screen used can be adjusted vertically, so as to chan ge the angle of inclination of the same.

The customary grooves made in the side boards of a shakin g-shoe forsecurin g the sieves are in the present instance dispensed with, as the tie-rods suftice to clamp the sieve onscreen between the side boards of the shoe. A screen 9o provided withl circular holes is specially designed for removing oats, barley, and other elongated grains or seeds from wheat, as the formation of the holes will only allow the wheat to pass through the same, all other matters being caused to pass off at the tail-end o the screen. 1

The grain assorting or separating shoe I is arranged below the yupper cleaning-shoe, and is inclined toward the front of the machine, so roo as to discharge its con tents away from the tailings of the upper shoe. The shoe I is of a boxlike form, and has aseries of sieves, J, fitted therein, which gradually diminishin length from the top` to the bottom of the shoe. mesh-Work of the screens also varies in size, the uppermost screen being the coarsest and the others gradually increasing in iinene'ss to the vvbottom of the shoe. The top sieve has guide-strips e at its rear end, ,which convergey rear portion ofthe second screen. The`bottom, of the receptacle receiving the gr-an fromtwo screensin themanner stated is provided with a slid-and a drawer or box, K, `located below. the latter, f receivesthe grain. yThe fourth screendischarges `its tailings into another receptacle, N3, and the latter also receivesthe grain. screened through therear portion of the; A drawer orbOX, K', s located below the last-mentioned receptacle for receiv ingthe grainpassingfrom thcisame.` ,A The number of screens employed depends. or size of the grain, and obets or receptacles in theshoe` must correspond in number with saidscreens, v

third screen.

upon the qualitvSI viously .the poc so as to receive the tailings of one screen and the material screened through the rear por-v tion of the screen next above.

A reciprocating movement in a longitudinal direction is imparted to the shoe I through the medium of a transverse rock-shaft, L,`Which is journaled in suitable bearings'at thefronty of the mill-casing, and has spur-segments M keyed 0r otherwise secured thereto These spuresegments mesh vinto rack-plates N, let into or secured to the under side of the kshoeI at the sides thereof. The rock-shaft L is actuated vthrough the medium of a vertical rod, O, which is connected with a crank-arm, fz, of

the rock-shaft, and with a wristpin, g, on an endr pinion, h, of the blast-fan?. .Said pinion gears into a large spur-wheel, Q, to which is applied a driving-crank or other device for communicating motion thereto.

4A longitudinal rod, It, connected with they wrist or eccentric pin g, extends tothe rear of the machine, and kis connected-,with a bellcranklever, S, located thereat. Alink, T,at

tached tol said bell-crank lever, is connected,

with the upper shoe for imparting a` shaking motion thereto. Plate orleaf springsl U, bear- ,v ing against the outer sides of said shoe, and. attached to the mill-casio g, serve to returnthe shoe or give the requisite jarring movement thereto.

The

A Windboard or blast-regulating board, V, is journaled in the mill-casing below the upper sieve-shoe,and can be raised or lowered for throwing the blast with greater or less force upon the upper shoe in a manner common to otherfanning-inills. A ratchet-and-pawl de vice, W, is employed for retaining the Wind-y board .in various positions.. rlhe feed-board of the upper shoe is also designed to concentrate the blast upon a reduced area ot' the screen,

so as to cause it to act with greater force upon the material vdeliveredthereto. For example, when chess or other light, seeds predominate in the grain thev adjust-able board is drawn backward vrfor .reducing the screening area of the screen.

Mechanism for imparting a. longitudinal. Y shaking Y inovementto the lowerseparating.- V shoe 1s used, in connection'with means forfimfparting a vertical .jarring motiontosaid shoe,v for preventing vthe cloggingof the meshesot'- its. screens. .Themeansl employed for the objectstatedcom prise rollers. X, located at each ysideA of the lmill-casing, and depressed or un Adulatjn-gplates .Y,.leti;nt0 the-underside of the shoe, A Said `plates in passing over the rollers,-V

during'f thereci-procation of the shoe will cause the latter to rise andfall,

I amawareofl the English 'Patent No. 413, 1 granted A. D. 1860, which illustratesV a recipa rocatin g separator-shoe operated by. meansfot" -a rock-shaft carryinga segment which meshes vside.. of a shoe which is inclined throughout.` its entire length, `plates are applied tothelower horizontal por- '9F into arack-platexapplied to an angularI block. locatedat the upper.- end.. andon theunder.

1n my invention two; I aCkioo tion of a reciprocating shoe, and the latter Vis inclined r.from a point at or near said rack-` where devi-cesarelocated for imparting a jarrin g` movement to theshoe 4without throwing out of gear thedevicesfor ei'ect-ing the reciprocatingmovement of the shoe.

,plates tothe upper or feed end of the shoe,

Having', th us described my invention, what I claim, and desire to secure by LettersfPat'ent, 1s

In a fannngmill, the combination ofthe shaking-e shoeihaving a series of inclined-. sieves, and a horizontal bottom section or door.

provided with rack-plates, and an upper in.

clined section or iioor carryingundulating or depressed plates, with therock-shaft provided With spur-segments engaging with thehrackf.

plates,.and,the mill-casinghavin g rollersenn gaging with the.dep.ressed plates, as and, for

-the purposefherein set forth.

In testimony whereof .I affix my signature in presence of two. witnesses.

FRANCIS M. BISSELL,

Witnesses:

JAMEsStrRArToN, EDWIN-STEELE. 

